Armorlogic Profense Web Application Firewall before 2.2.22, and 2.4.x before 2.4.4, has a default root password hash, and permits password-based root logins over SSH, which makes it easier for remote attackers to obtain access.
https://exchange.xforce.ibmcloud.com/vulnerabilities/50852
http://www.securityfocus.com/archive/1/503649/100/0/threaded
http://resources.enablesecurity.com/advisories/ES-20090500-profense.txt